Fans who only play single player will never be affected by this transitional

 period before changes made to the game set Minecraft Maps out to affect single player directly (almost certainly after Beta is live, or 'activated'). In a more general sense, games in Alpha are considered buggy and barely playable, while Beta (being nearer to Release), is a lot more stable and crashes less. Minecraft is a amazing game in more ways than one, but particularly in this regard. For any game this at the beginning of development, not to mention this kind of indie sensation mostly produced by one lone guy, it really is remarkably stable already, but Beta may improve upon its strengths even further.

   You just bought the game! A Minecraft Premium Account allows use of many different things, namely the Minecraft Alpha. Within the Alpha is all the updates the game's creator, Notch, has been working on within the past few years.
Read more   TerraCraft Resource Pack  at minecraftio.com/terracraft-resource-pack/